Complex surface Arctic 1 Area division 1 Chukchi Sea 1 Curvature characteristic 1 Curvature characteristics 1 Curve fitting 1 Feature point 1 Feature points 1 Fractal scaling 1 Fractals 1 Multifractal models 1 Oil spills 1 Planning method 1 Sampling method 1 Sampling point planning 1 Sampling points 1 Sampling points planning 1 Sampling strategies 1 Scaling behaviours 1 Scaling laws 1 Sea ice 1 Sea ice draft 1 Sonar data 1 Surface inspection 1 Topography 1 Universal multi-fractals 1 Universal multifractal model 1